Incidence


[in-si-duh ns] /ˈɪn sɪ dəns/

noun
1.
the rate or range of occurrence or influence of something, especially of something unwanted:
the high incidence of heart disease in men over 40.
2.
a falling upon, affecting, or befalling; occurrence:
The incidence of murder that Sunday afternoon shocked the sleepy village.
3.
Optics, Physics.

4.
the fact or the manner of being incident.
5.
Geometry. partial coincidence of two figures, as of a line and a plane containing it.
/ˈɪnsɪdəns/
noun
1.
degree, extent, or frequency of occurrence; amount: a high incidence of death from pneumonia
2.
the act or manner of impinging on or affecting by proximity or influence
3.
(physics) the arrival of a beam of light or particles at a surface See also angle of incidence
4.
(geometry) the partial coincidence of two configurations, such as a point that lies on a circle
n.

early 15c., “incidental matter,” from Middle French incidence (15c.), from Late Latin incidentia (see incident (n.)). Meaning “act of coming into contact with” is from 1650s; sense in physics is from 1620s.

incidence in·ci·dence (ĭn’sĭ-dəns)
n.

in’ci·dent adj.

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